John scholl



@uiten 'tatrs @anni @fitta IMPROVEMENT IN lGAS-BURNERS.

@te rlgetule referat tu in ttes what @dat mit mating glatt tf tige same.

TO WHOM IT MAY CONCERN:

Be it known that I, JOHN SCHOLL, of 41 Berwick street, Soho, in thecounty of Middlesex, England, have invented certain new and usefulImprovements in Gas-Burners; and I hereby declare that the following isa full, clear, and exact description of the same. 1

This invention has for its object improvements in gas-burners. In orderto increase the light obtained by burning gas with the ordinarydat-flame burners known as fish-tail and bats-wing, and with othersimilar burners, I employ a narrow and thin strip of metal, (bypreference platinum,) and this I dt so as to stand in the plane of theflame immediately above the burner. The metal should be so thin that itsedge may not materially interfcre with the issue of the gas-from theburner. This addition to a gas-burner will be found greatly to increasethe quantity of light given, by burning a given measure of gas throughthe burner.

Figures 1, 2, and 2, of the annexed sheet of drawings, `show the upperend or nozzle of a fish-tail burner, in elevation and plan, with myimprovement applied to it in the manner I prefer.

a is the nozzle of the burner; b is a short tube or collar, 'of brass orother material, made to iit the nozzle. This tube or collar may, ifdesired, be split on one side to enable it to pass readily on to thenozzle, and lto embrace it firmly when there. e is a thin strip ofplatinum, shown in blue lines, fixed to the tube or collar b, by fittingit into two small notches, one on each side of the tube,`and thenclosing the notches upon it, by spreading the metal on one or both4sides of the notch, or the platinum may be fixed in any convenient way.[n place of platinum, other materials capable of resisting the actionofk the ame may be employed.

- Figures 3 and 4 show two views of the parts b and c separate from thenozzle of the burner.

For a bats-wi'ng burner, shown at Figures 3 and 4, the strip c shouldalso be in the plane of the ame, and immediately above the slit throughwhich the gasI issues from the burner. In the bats-wing burner,moreover, I make the strip c of a horse-shoe or curved ferm, as shown inmy drawings, so as to surround the rounded contour of the top of theburner, and I sometimes make the burner, whether fish-tail or bats-wing,with an enlargement or shoulder, into which I fit the strip of platinumc, in lieu of using a movable tube or collar, b. When a loose collar isused, I make a slight notch near the top of the burner, or in theinterior of the collar, to insure its always retaining its properposition on the burner. To ordinary argand and other ring-burners, Imakea similar addition, the strip of platinum being then made into aring and fixed over the circle of holes, the diameter of the thinplatinum ring being very slightly less than that of the exterior of thecircle of holes.

Figure 5 shows a vertical section, and

Figure 6 a plan of an argand-burner with my improvement applied to it inthe manner I prefer. f

a isthe perforated ring through which the gas issues; b is a ring ofplatinum, so held as to stand immediately within the ring of holes; c 'care metal springs riveted to the ring. They are made to enter within thetubular part of the burner, so as to hold the ring b steadily and trulyin its place.

The parts b ande are shown separately in Figure 7.

l Czazm.

The application and use to and in gas-burners, substantially ashereinbefore shown and described, of a narrow and thin strip ofplatin-um, for the purpose set forth.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN SCHOLL.

Witnesses SAMUEL J. BATnsoN, JOHN J. REIDLER.

